I've had a macbook air for around 5 years, it's still working but a bit slower and sometimes it just hangs which is new. So I was thinking I could upgrade but was not sure whether another macbook would do or better switch to something else. My problem with apple stuff is that they are a closed box, nothing to modify or change or fix but their endurance is impressive. I've found other stuff like Dell Inspiron, Lenovo and Asus that seem to offer an excellent performance but I am still not quite sure how do they compare. When I got my macbook air it was like I have just bought a rocket vs a bike. What's our personal experience?